Roddy Ezell

Software Engineer | Payments Infrastructure
Understanding real-world processes, envisioning better systems, and building software that makes them visible and controllable.

Experience

Software Engineer

April 2023 - Present
JPMorgan Chase & Co. Tampa, FL
  • Develop and maintain merchant services SDK that abstracts multiple payment backends (Tandem, Orbital, Stratus) into a unified API for enterprise merchant integration
  • Diagnose and resolve merchant integration issues across payment backends with limited observability, requiring deep inference across SDK, gateway, and processor layers
  • Built SDK performance testing framework measuring throughput across connectivity types (TCP, HTTP, SFTP) and payment backends (Tandem, Stratus); used on every release for trend analysis and surfaced blocking behavior in previously assumed multithreaded architecture
  • Optimized HTTP header validation logic, improving throughput from 18 to 136 tps in gateway integration
  • Created SDK generator module that produces merchant-specific packages based on gateway, connectivity type, and processing mode, eliminating unused dependencies and minimizing size
  • Built configuration editor UI consolidating comm, proxy, and host sim settings, simplifying config file editing for integration teams – now standard tooling for merchant onboarding

R&D Engineer

November 2017 - April 2023
Conmed Largo, FL
  • Designed and built a custom ServiceNow application to manage test lab requests; defined requirements, designed workflows, and implemented the solution independently
  • Created automated test system controlling 10 devices simultaneously via USB, expediting product launch
  • Designed and conducted experiments, authorized the release of test results to the design history file, and authored the corporate procedure governing operations of the test lab.
  • Realized a significant cost and time savings for every project by creating a database linking shelf-life report data to materials, minimizing the need to repeat aging studies.
  • Authored hundreds of design verification test protocols and reports establishing claims about product functionality and sterile barrier efficacy.
  • Instrumental in resolving EU MDR regulatory gaps which risked the continued sales of a $200M portfolio of legacy Class I and II medical devices.
  • Fulfilled packaging engineering for many sterile and non-sterile devices. Responsible for selecting packaging materials, guiding team on packaging test requirements, and authoring packaging instructions for Ops.

Projects

cobalance

2025
  • Household treasury system with per-paycheck deposit scheduling, cashflow forecasting, and shortfall detection; coordinates shared-bill payments for couples with separate finances and variable income.

Education

University of South Florida

University of South Florida

August 2015 - August 2017
Mechanical Engineering, B.Sc
AWS Certification

AWS Certified Solutions Architect - Associate

October 2025
Exp: Oct 2028
AWS Certification

AWS Certified Cloud Practitioner (CLF-C01)

January 2023
Exp: Jan 2026

Contact Me